package com.mogist.hqc.view;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.support.v7.widget.AppCompatEditText;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.CycleInterpolator;
import android.view.animation.TranslateAnimation;

import com.mogist.hqc.R;

import talex.zsw.basecore.util.DataTool;

/**
 * 作用：带删除按钮的EditText
 * 作者：赵小白 email:vvtale@gmail.com  
 * 修改人：
 * 修改时间：
 * 修改备注：
 */
public class ClearEditText2 extends AppCompatEditText
	implements View.OnFocusChangeListener, TextWatcher
{
	// 删除按钮的引用
	private Drawable mClearDrawable;

	public ClearEditText2(Context context)
	{
		this(context, null);
	}

	// 这里构造方法也很重要，不加这个很多属性不能再XML里面定义
	public ClearEditText2(Context context, AttributeSet attrs)
	{
		this(context, attrs, android.R.attr.editTextStyle);
	}

	public ClearEditText2(Context context, AttributeSet attrs, int defStyle)
	{
		super(context, attrs, defStyle);
		init();
	}

	private void init()
	{
		// 获取EditText的DrawableRight,假如没有设置我们就使用默认的图片
		mClearDrawable = getCompoundDrawables()[2];
		if(mClearDrawable == null)
		{
			mClearDrawable = getResources().getDrawable(R.drawable.i_close);
		}
		mClearDrawable.setBounds(0, 0, mClearDrawable.getIntrinsicWidth(), mClearDrawable.getIntrinsicHeight());
		setClearIconVisible(false);
		setOnFocusChangeListener(this);
		addTextChangedListener(this);
	}

	/**
	 *  * 因为我们不能直接给EditText设置点击事件，所以我们用记住我们按下的位置来模拟点击事件
	 *  * 当我们按下的位置 在 EditText的宽度 - 图标到控件右边的间距 - 图标的宽度 和
	 *  * EditText的宽度 - 图标到控件右边的间距之间我们就算点击了图标，竖直方向没有考虑
	 *  
	 */
	@Override public boolean onTouchEvent(MotionEvent event)
	{
		if(getCompoundDrawables()[2] != null)
		{
			if(event.getAction() == MotionEvent.ACTION_UP)
			{
				boolean touchable = event.getX() >
					(getWidth()-getPaddingRight()-mClearDrawable.getIntrinsicWidth()) &&
					(event.getX() < ((getWidth()-getPaddingRight())));
				if(touchable)
				{
					this.setText("");
					if(clearListener!=null)
					{
						clearListener.onClear();
					}
				}
			}
		}
		return super.onTouchEvent(event);
	}

	/**
	 *  * 当ClearEditText焦点发生变化的时候，判断里面字符串长度设置清除图标的显示与隐藏
	 *  
	 */
	@Override public void onFocusChange(View v, boolean hasFocus)
	{
		if(hasFocus)
		{
			setClearIconVisible(getText().length() > 0);
		}
		else
		{
			setClearIconVisible(false);
		}
	}

	/**
	 *  * 设置清除图标的显示与隐藏，调用setCompoundDrawables为EditText绘制上去
	 *  * @param visible
	 *  
	 */
	protected void setClearIconVisible(boolean visible)
	{
		Drawable right = visible ? mClearDrawable : null;
		setCompoundDrawables(getCompoundDrawables()[0], getCompoundDrawables()[1], right, getCompoundDrawables()[3]);
	}

	/**
	 *  * 当输入框里面内容发生变化的时候回调的方法
	 *  
	 */
	@Override public void onTextChanged(CharSequence s, int start, int count, int after)
	{
		setClearIconVisible(s.length() > 0);
	}

	@Override public void beforeTextChanged(CharSequence s, int start, int count, int after)
	{
	}

	@Override public void afterTextChanged(Editable s)
	{
		if(listener != null)
		{
			listener.onChanged(DataTool.getNotNull(s.toString()));
		}
	}

	/**
	 *  * 晃动动画
	 *  * @param counts 5
	 *  * @return
	 *  
	 */
	public static void shake()
	{
		Animation translateAnimation = new TranslateAnimation(0, 10, 0, 0);
		translateAnimation.setInterpolator(new CycleInterpolator(5));
		translateAnimation.setDuration(600);
		translateAnimation.start();
	}

	private ClearEditText2.AfterTextChangedListener listener;
	public void setAfterChangedListener(ClearEditText2.AfterTextChangedListener listener)
	{
		this.listener = listener;
	}

	public interface AfterTextChangedListener
	{
		void onChanged(String s);
	}

	private ClearEditText2.ClearTextListener clearListener;

	public void setClearTextListener(ClearEditText2.ClearTextListener listener)
	{
		this.clearListener = listener;
	}

	public interface ClearTextListener
	{
		void onClear();
	}
}
